arm64: dts: qcom: sm8250-xiaomi-elish: correct GPIO keys wakeup

gpio-keys,wakeup is a deprecated property:

  sm8250-xiaomi-elish.dtb: gpio-keys: key-vol-up: Unevaluated properties are not allowed ('gpio-key,wakeup' was unexpected)
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230304123358.34274-8-krzysztof.kozlowski@linaro.org

arch/arm64/boot/dts/qcom/sm8250-xiaomi-elish.dts

@@ -95,7 +95,7 @@ key-vol-up {
 			linux,code = <KEY_VOLUMEUP>;
 			debounce-interval = <15>;
 			linux,can-disable;
-			gpio-key,wakeup;
+			wakeup-source;
 		};
 	};